you imagine endless repetition of situps and push-ups. torture, they call it, when they leave you in freezing water. not just for a few minutes, but for five more days. five days of struggle and uncertainty. five days of physical and emotional torment separating the iron willed from the stronger in the distance, a bell sounds three times, and then another three times. if you hear the bell, you know that another student has chosen to quit. a voice rises and falls, haunting you, inviting you to do the same. quit now and you can avoid the rest later. one by one, sometimes in clusters, other students surrender. all around you, all around you, they climb up out of the ocean and walk up the sandhill and they ring the bell. for them, it is the end.